On the Night of the party, I took pictures of each person in costume. There was only one person in attendance that was not in costume, so I made that person a zombie. We had a costume contest so most people actually tried. When I took the pictures, I asked each person what weapon they would like to be holding, and either used a block of wood, or a toy gun to get their hands in the correct position. I took the pictures and masked them out in photoshop, and then added in the weapons they chose. One person wanted no weapon.